Derm Flashcards
1
Q
Lichen planus
A
inflammatory pruritis dz of the skin and mucous membranes
-violaceous papules and lacy white streaks on skin and mucous membranes
2
Q
Acanthosis nigricans associated with:
A
- Insulin resistance: obesity, DM, Cushing’s syndrome
- gastric or hepatocellular ca
- less common, lung ca
3
Q
Rosacea cause, presentation, and tx
A
- unknown etiology
- pustles, erythema, telangiectasia with flushing. Worsened with stress and ETOH
- Topical benzoyl peroxide or flagyl
4
Q
Tinea barbae dx
A
KOH test
5
Q
Scabies tx
A
ivermectin or permethrin
6
Q
Tinea corporis organism, dx, tx
A
Trichophyton rubrum
KOH prep
antifungal meds, betamethasone not recommended
7
Q
Secondary syphilis organism
A
spirochete Treponema pallidum
8
Q
Psoriasis radiographic changes
A
distal and affects few joints
marginal erosion of bone
phalanges involvement with sharpened pencil appearance
9
Q
Meds that can worsen psoriasis
A
beta blockers
lithium
antimalarials
statins
